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Common Stock Purchase Agreement	6 Months Ended
Jun. 30, 2011
Common Stock Purchase Agreement
Common Stock Purchase Agreement	8. Common Stock Purchase Agreement On July 6, 2011 the Company closed the issuance and sale of 15,900,000 shares of its common stock and accompanying warrants to purchase a total of 7,950,000 shares of common stock. A combination of one share of common stock and a five year warrant to purchase 0.5 shares of common stock was sold in the offering for a combined public offering price of $1.58 per share, less underwriting discounts and commissions payable by the Company. The underwriter, JMP Securities LLC, purchased the common stock and warrants at a discounted price of $1.49 per combination, representing a 5.7% discount to the public offering price. Cash proceeds received by the Company, after the payment of underwriter commission and expenses and offering expenses, were approximately $23,575,000.

Common Stock Purchase Agreement

6 Months Ended

Jun. 30, 2011

8. Common Stock Purchase Agreement

On July 6, 2011 the Company closed the issuance and sale of 15,900,000 shares of its common stock and accompanying warrants to purchase a total of 7,950,000 shares of common stock. A combination of one share of common stock and a five year warrant to purchase 0.5 shares of common stock was sold in the offering for a combined public offering price of $1.58 per share, less underwriting discounts and commissions payable by the Company. The underwriter, JMP Securities LLC, purchased the common stock and warrants at a discounted price of $1.49 per combination, representing a 5.7% discount to the public offering price. Cash proceeds received by the Company, after the payment of underwriter commission and expenses and offering expenses, were approximately $23,575,000.